It is based on AppMobi that Intel bought some months ago. AppMobi was an alternative to PhoneGap, but it attempted to streamline the whole process of wrapping an HTML5 app into a native app, with an "IDE" (more of a GUI for the build process) and a cloud-based assembly and provisioning platform. And of course a lot of proprietary APIs for stuff like in-app payments, social integration, etc.<p>I tried AppMobi early on but as a developer I much prefer something open like PhoneGap, even if (or because) I have to glue the pieces together by myself. I don't really see the demographic that knows how to develop an HTML5 web application but prefers a closed black-box environment for putting together the mobile app.<p>The AppMobi XDK was pretty slick though. But from the announcement it seems like they pretty much tore it down and started over from scratch.<p>These days I hold higher hopes for real convert-to-native tools, that actually translates HTML5 (f.ex. the canvas API) to native code.